<?php
function smarty_modifier_truncate_cn($string, $sublen = 80, $etc = '...',
                                  $break_words = false, $middle = false)
{
$start=0;
$code="UTF-8";
       if($code == 'UTF-8')
   {
       $pa = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/";
       preg_match_all($pa, $string, $t_string);

       if(count($t_string[0]) - $start > $sublen) return join('', array_slice($t_string[0], $start, $sublen))."...";
       return join('', array_slice($t_string[0], $start, $sublen));
   }
   else
   {
       $start = $start*2;
       $sublen = $sublen*2;
       $strlen = strlen($string);
       $tmpstr = '';

       for($i=0; $i<$strlen; $i++)
       {
           if($i>=$start && $i<($start+$sublen))
           {
               if(ord(substr($string, $i, 1))>129)
               {
                   $tmpstr.= substr($string, $i, 2);
               }
               else
               {
                   $tmpstr.= substr($string, $i, 1);
               }
           }
           if(ord(substr($string, $i, 1))>129) $i++;
       }
       if(strlen($tmpstr)<$strlen ) $tmpstr.= "...";
       return $tmpstr;
   }


}
?>